jiti-meet/api_connector.js

100 lines
2.6 KiB
JavaScript

/**
* Implements API class that communicates with external api class
* and provides interface to access Jitsi Meet features by external
* applications that embed Jitsi Meet
*/
var APIConnector = (function () {
function APIConnector() { }
/**
* List of the available commands.
* @type {{
* displayName: inputDisplayNameHandler,
* muteAudio: toggleAudio,
* muteVideo: toggleVideo,
* filmStrip: toggleFilmStrip
* }}
*/
var commands =
{
displayName: VideoLayout.inputDisplayNameHandler,
muteAudio: toggleAudio,
muteVideo: toggleVideo,
filmStrip: BottomToolbar.toggleFilmStrip
};
/**
* Check whether the API should be enabled or not.
* @returns {boolean}
*/
APIConnector.isEnabled = function () {
var hash = location.hash;
if(hash && hash.indexOf("external") > -1 && window.postMessage)
return true;
return false;
};
/**
* Initializes the APIConnector. Setups message event listeners that will
* receive information from external applications that embed Jitsi Meet.
* It also sends a message to the external application that APIConnector
* is initialized.
*/
APIConnector.init = function () {
if (window.addEventListener)
{
window.addEventListener('message',
APIConnector.processMessage, false);
}
else
{
window.attachEvent('onmessage', APIConnector.processMessage);
}
APIConnector.sendMessage({loaded: true});
};
/**
* Sends message to the external application.
* @param object
*/
APIConnector.sendMessage = function (object) {
window.parent.postMessage(JSON.stringify(object), "*");
};
/**
* Processes a message event from the external application
* @param event the message event
*/
APIConnector.processMessage = function(event)
{
var message;
try {
message = JSON.parse(event.data);
} catch (e) {}
for(var key in message)
{
if(commands[key])
commands[key].apply(null, message[key]);
}
};
/**
* Removes the listeners.
*/
APIConnector.dispose = function () {
if(window.removeEventListener)
{
window.removeEventListener("message",
APIConnector.processMessage, false);
}
else
{
window.detachEvent('onmessage', APIConnector.processMessage);
}
};
return APIConnector;
})();